Following the season's completion and due to the breakup of Yugoslavia, Croatian clubs, including Dinamo, decided to leave the league to form Prva HNL.
A feature of the Yugoslav league in this period were penalty shoot-outs, played in case of tied results at the end of regular time, with only the winning team earning a point.
In Europe Dinamo held Italy's Atalanta to a 1–1 draw at Maksimir in the UEFA Cup, only getting knocked out due to the away goals rule.
At the end of the season Boban was transferred to Milan, where he would spend the following decade, while Šuker was sold to Sevilla in Spain, where he would soon become one of the league's top scorers of the early 1990s.
Before the season, Dinamo's Šuker and Panadić had been part of the Yugoslavia squad under national manager Ivica Osim at the 1990 FIFA World Cup played in Italy in July 1990.
Nevertheless, during the 1990–91 season the following Dinamo players earned full international caps for Yugoslavia: Petrović (1) Boban (4), Ladić (2), Šuker (2).
Petrović, who also left for Sevilla along with Šuker at the end of season, later earned 16 caps for FR Yugoslavia (later renamed "Serbia and Montenegro"), while Ladić, Boban and Šuker went on to become stalwarts in the star-studded Croatia national football team which reached the quarter-final at the UEFA Euro 1996 in England and the semi-final at the 1998 FIFA World Cup in France.